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Lexus GS 430 V8-4.3L (3UZ-FE) (2004)03 · Maintenance
03 · Maintenance

Timing Belt: Specifications (page 10 of 20)

Make
Lexus
Model
GS 430
Engine
V8-4.3L (3UZ-FE)
Year
2004
Section
Timing Belt
MaintenanceSpecifications · page 10 of 20
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b. Check that the timing marks of the camshaft timing pulleys and timing belt rear plates aligned. 

If not, turn the crankshaft 1 revolution (360°).

c. Turn the crankshaft pulley approximately 50° clockwise, and put the timing mark of the crankshaft pulley in line with the centers of the

crankshaft pulley bolt and the No.2 timing belt idler pulley bolt.

NOTICE:  If the timing belt is disengaged, having the crankshaft pulley at the wrong angle can cause the piston head and valve head to come
into contact with each other when you remove the camshaft timing pulley (step 15), causing damage. So always set the crankshaft pulley at the
correct angle.

d. Remove the crankshaft pulley bolt. 

NOTICE:  Do not turn the crankshaft pulley.

18. REMOVE TIMING BELT TENSIONER 

HINT:   

^

When re-using timing belt:
If the installation marks have disappeared, before remove the timing belt, place 2 new installation marks on the timing belt to match the timing
marks of the camshaft timing pulleys.

^

When replacing timing belt tensioner only:

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Parts & tools for this job For 2004 Lexus GS 4.3L

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